Patents by Inventor Rong-Kun Chang

Rong-Kun Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220016041
    Abstract: Disclosed are once-daily formulations containing tetracyclines, especially doxycycline. Such formulations are useful, for instance, for the treatment of collagenase destructive enzyme-dependent diseases, such as periodontal disease and acne, and acute and chronic inflammatory disease states, such as rosacea and arthritis.
    Type: Application
    Filed: February 25, 2021
    Publication date: January 20, 2022
    Inventors: Rong-Kun Chang, Arash Raoufinia, Niraj Shah
  • Publication number: 20210322429
    Abstract: Formulations of molindone having superior stability and methods of administering same are provided. The formulations may be immediate, modified, or otherwise delayed release formulations of molindone.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 21, 2021
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Michael L. Vieira, Likan Liang, Padmanabh P. Bhatt, Austin B. Huang, Sachin V. Patel
  • Patent number: 11077114
    Abstract: Formulations of molindone having superior stability and methods of administering same are provided. The formulations may be immediate, modified, or otherwise delayed release formulations of molindone.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: August 3, 2021
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Michael L. Vieira, Likan Liang, Padmanabh P. Bhatt, Austin B. Huang, Sachin V. Patel
  • Publication number: 20190125683
    Abstract: Disclosed are once-daily formulations containing tetracyclines, especially doxycycline. Such formulations are useful, for instance, for the treatment of collagenase destructive enzyme-dependent diseases, such as periodontal disease and acne, and acute and chronic inflammatory disease states, such as rosacea and arthritis.
    Type: Application
    Filed: October 26, 2018
    Publication date: May 2, 2019
    Inventors: Rong-Kun Chang, Arash Raoufinia, Niraj Shah
  • Publication number: 20190060323
    Abstract: Formulations of molindone having superior stability and methods of administering same are provided. The formulations may be immediate, modified, or otherwise delayed release formulations of molindone.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun CHANG, Michael L. VIEIRA, Likan LIANG, Padmanabh P. BHATT, Austin B. HUANG, Sachin V. PATEL
  • Patent number: 10149853
    Abstract: Formulations of molindone having superior stability and methods of administering same are provided. The formulations may be immediate, modified, or otherwise delayed release formulations of molindone.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: December 11, 2018
    Assignee: SUPERNUS PHARMACEUTICALS, INC.
    Inventors: Rong-Kun Chang, Michael L. Vieira, Likan Liang, Padmanabh P. Bhatt, Austin B. Huang, Sachin V. Patel
  • Patent number: 9780085
    Abstract: An electronic static discharge protection apparatus provided. A plurality of ESD circuits serially coupled between a pad and a internal circuit, a first stage ESD circuit includes a ESD element directly coupled to the pad, and a last stage ESD circuit includes an inductive element directly coupled to the internal circuit, so as to improve electronic discharge protecting ability of the ESD protection apparatus and increase circuit operation bandwidth without signal loss attenuation.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: October 3, 2017
    Assignee: Novatek Microelectronics Corp.
    Inventors: Rong-Kun Chang, Jie-Ting Chen, Chun-Yu Lin, Ming-Dou Ker, Tzu-Chien Tzeng, Ping-Chang Lin
  • Publication number: 20160113880
    Abstract: Disclosed are once-daily formulations containing tetracyclines, especially doxycycline. Such formulations are useful, for instance, for the treatment of collagenase destructive enzyme-dependent diseases, such as periodontal disease and acne, and acute and chronic inflammatory disease states, such as rosacea and arthritis.
    Type: Application
    Filed: June 2, 2015
    Publication date: April 28, 2016
    Inventors: Rong-Kun Chang, Arash Raoufinia, Niraj Shah
  • Patent number: 9308176
    Abstract: The present invention is directed to pharmaceutical compositions of psychoactive drugs having a reduced potential for abuse and methods of reducing the potential for abuse of dosage forms of prescription psychoactive drugs.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: April 12, 2016
    Assignee: Supernus Pharmaceuticals, Inc
    Inventor: Rong-Kun Chang
  • Patent number: 9144551
    Abstract: Drug formulations having reduced abuse potential which contain one or more of (1) a bittering agent, (2) a bright deterrent/indicator dye and (3) fine insoluble particulate matter. The bittering agent and dye are in a form which does not affect proper administration of the drug, but the bittering agent creates a bitter side effect when the dosage form is crushed or chemically extracted and nasally, orally, buccally or sublingually administered and the dye produces a bright color when crushed and contacted. The fine insoluble particulate matter hinders extraction of the drug from the dosage form and, when crushed, can deter intravenous injection because of the presence of the insoluble particles or hinder injection by blocking an intravenous needle. The bright color of the dye, when extracted, also has a psychologically deterrent effect on intravenous abusers.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: September 29, 2015
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Richard A. Couch, Beth A. Burnside
  • Publication number: 20150150816
    Abstract: Drug formulations having reduced abuse potential which contain one or more of (1) a bittering agent, (2) a bright deterrent/indicator dye and (3) fine insoluble particulate matter. The bittering agent and dye are in a form which does not affect proper administration of the drug, but the bittering agent creates a bitter side effect when the dosage form is crushed or chemically extracted and nasally, orally, buccally or sublingually administered and the dye produces a bright color when crushed and contacted. The fine insoluble particulate matter hinders extraction of the drug from the dosage form and, when crushed, can deter intravenous injection because of the presence of the insoluble particles or hinder injection by blocking an intravenous needle. The bright color of the dye, when extracted, also has a psychologically deterrent effect on intravenous abusers.
    Type: Application
    Filed: December 8, 2014
    Publication date: June 4, 2015
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun CHANG, Richard A. COUCH, Beth A. BURNSIDE
  • Publication number: 20150086629
    Abstract: Formulations of molindone having superior stability and methods of administering same are provided. The formulations may be immediate, modified, or otherwise delayed release formulations of molindone.
    Type: Application
    Filed: April 25, 2014
    Publication date: March 26, 2015
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Michael L. Vieira, Likan LIANG, Padmanabh P. BHATT, Austin B. HUANG, Sachin V. PATEL
  • Publication number: 20150057254
    Abstract: Disclosed are once-daily formulations containing tetracyclines, especially doxycycline. Such formulations are useful, for instance, for the treatment of collagenase destructive enzyme-dependent diseases, such as periodontal disease and acne, and acute and chronic inflammatory disease states, such as rosacea and arthritis.
    Type: Application
    Filed: March 19, 2014
    Publication date: February 26, 2015
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Arash Raoufinia, Niraj Shah
  • Patent number: 8906413
    Abstract: Drug formulations having reduced abuse potential which contain one or more of (1) a bittering agent, (2) a bright deterrent/indicator dye and (3) fine insoluble particulate matter. The bittering agent and dye are in a form which does not affect proper administration of the drug, but the bittering agent creates a bitter side effect when the dosage form is crushed or chemically extracted and nasally, orally, buccally or sublingually administered and the dye produces a bright color when crushed and contacted. The fine insoluble particulate matter hinders extraction of the drug from the dosage form and, when crushed, can deter intravenous injection because of the presence of the insoluble particles or hinder injection by blocking an intravenous needle. The bright color of the dye, when extracted, also has a psychologically deterrent effect on intravenous abusers.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: December 9, 2014
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Richard A. Couch, Beth A. Burnside
  • Patent number: 8808714
    Abstract: Disclosed are pharmaceutical compositions, particularly oral dosage forms, which comprise two or more enteric coating materials, either as a coating or as part of a matrix dosage form, and methods of making and using the same. The compositions are characterized by having a sustained release profile at lower pH and an accelerated dissolution profile at higher pH.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: August 19, 2014
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Niraj Shah
  • Patent number: 8748472
    Abstract: Formulations of molindone having superior stability and methods of administering same are provided. The formulations may be immediate, modified, or otherwise delayed release formulations of molindone.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: June 10, 2014
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Michael L. Vieira, Likan Liang, Padmanabh P. Bhatt, Austin B. Huang, Sachin V. Patel
  • Patent number: 8709478
    Abstract: Disclosed are once-daily formulations containing tetracyclines, especially doxycycline. Such formulations are useful, for instance, for the treatment of collagenase destructive enzyme-dependent diseases, such as periodontal disease and acne, and acute and chronic inflammatory disease states, such as rosacea and arthritis.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: April 29, 2014
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Arash Raoufinia, Niraj Shah
  • Publication number: 20140072626
    Abstract: Disclosed are once-daily formulations containing tetracyclines, especially doxycycline. Such formulations are useful, for instance, for the treatment of collagenase destructive enzyme-dependent diseases, such as periodontal disease and acne, and acute and chronic inflammatory disease states, such as rosacea and arthritis.
    Type: Application
    Filed: June 18, 2013
    Publication date: March 13, 2014
    Inventors: Rong-Kun Chang, Arash Raoufinia, Niraj Shah
  • Patent number: 8470364
    Abstract: Disclosed are once-daily formulations containing tetracyclines, especially doxycycline. Such formulations are useful, for instance, for the treatment of collagenase destructive enzyme-dependent diseases, such as periodontal disease and acne, and acute and chronic inflammatory disease states, such as rosacea and arthritis.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: June 25, 2013
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Arash Raoufinia, Niraj Shah
  • Patent number: 8394406
    Abstract: Disclosed are once-daily formulations containing tetracyclines, especially doxycycline. Such formulations are useful, for instance, for the treatment of collagenase destructive enzyme-dependent diseases, such as periodontal disease and acne, and acute and chronic inflammatory disease states, such as rosacea and arthritis.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: March 12, 2013
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Arash Raoufinia, Niraj Shah